Results 131 to 140 of about 801,925 (377)
Warm dark matter does not do better than cold dark matter in solving small-scale inconsistencies [PDF]
, 2013 Over the last decade, warm dark matter (WDM) has been repeatedly proposed as an alternative scenario to the standard cold dark matter (CDM) one, potentially resolving several disagreements between the CDM model and observations on small scales.
A. Schneider +3 more
semanticscholar +1 more source
The Effect of Cosmological Background Dynamics on the Spherical Collapse in MOND
, 2011 The effect of background dynamics of the universe on formation of large scale structures in the framework of Modified Newtonian Dynamics (MOND) is investigated. A spherical collapse model is used for modeling the formation of the structures.
Bekenestein +31 more
core +1 more source
Cold dark matter. 1: The formation of dark halos
The Astrophysical Journal, 1994 We use numerical simulations of critically-closed cold dark matter (CDM) models to study the effects of numerical resolution on observable quantities. We study simulations with up to $256^3$ particles using the particle-mesh (PM) method and with up to $144^3$ particles using the adaptive particle-particle --particle-mesh (P$^3$M) method. Comparisons of
James M. Gelb, Edmund Bertschinger
openaire +3 more sources
Messenger sneutrinos as cold dark matter [PDF]
Physics Letters B, 1997 In models where supersymmetry breaking is communicated into the visible sector via gauge interactions the lightest supersymmetric particle is typically the gravitino which is too light to account for cold dark matter. We point out that the lightest messenger sneutrinos with mass in the range of one to three TeV may serve as cold dark matter over most ...
Ralf Hempfling, Tao Han
openaire +4 more sources
Direct Recycling of Cold Work Tool Steel Swarf into New Cutting Disks via Field‐Assisted Sintering
Advanced Engineering Materials, EarlyView.Through a sintering method known as field‐assisted sintering technology/spark plasma sintering, cold work tool steel swarf can be directly recycled into new cutting disks. This method is capable of densifying the unconventional powder morphology of swarf, and it can also seal grinding contaminants, such as Al2O3, into the steel matrix.
Monica Keszler +4 more
wiley +1 more source
Scalar representations in the light of electroweak phase transition and cold dark matter phenomenology [PDF]
, 2013 The extension of the standard model's minimal Higgs sector with an inert SU(2)L scalar doublet can provide light dark matter candidate and simultaneously induce a strong phase transition for explaining Baryogenesis.
Shehu S. Abdussalam +1 more
semanticscholar +1 more source
Production of Metallic Foam Precursors Using Current‐Activated Pressure‐Assisted Densification
Advanced Engineering Materials, EarlyView.A powder compaction metallurgical method, known as current‐activated pressure‐assisted densification, is applied to enhance the compaction of metal foam precursors. This method improves precursor quality by achieving higher density, lower electrical resistivity, and more uniform pore nucleation in the resulting foams, reducing energy consumption and ...
Tillmann Robert Neu +2 more
wiley +1 more source
Nuclear Physics BAxions have a double motivation: they solve the ‘strong CP problem’ of the Standard Model of elementary particles and they are a candidate for the dark matter of the Universe.
Pierre Sikivie
doaj +1 more source
Physics Letters B, 2014 We propose an ultraviolet complete theory for cold dark matter (CDM) and sterile neutrinos that can accommodate both cosmological data and neutrino oscillation experiments within 1σ level.
P. Ko, Yong Tang
doaj +1 more source
Bars and Cold Dark Matter Halos [PDF]
The Astrophysical Journal, 2006 Modified version after referee's suggestions.
Pedro Colín +2 more
openaire +4 more sources